1.用python實現(xiàn)一個查看某網(wǎng)段所有主機的狀態(tài)（3秒實現(xiàn)）

#vim ping.py

import subprocess

import threading

def ping(host):

result = subprocess.call(

"ping -c2 %s &> /dev/null" % host,

shell=True

)

if result == 0:

print "%s:up" % host

else:

print "%s:down" % host

if __name__ == "__main__":

ips = ["172.40.55.%s" % i for i in range(1, 255)]

for ip in ips:

t = threading.Thread(target=ping, args=(ip,))

t.start()

[root@room1pc01 桌面]# python mtping.py

172.40.55.1:up

172.40.55.66:up

172.40.55.6:down

172.40.55.114:up

172.40.55.2:down

172.40.55.3:down

172.40.55.115:up

。。。。。

2.利用ssh實現(xiàn)多線程并發(fā)訪問(可以同時創(chuàng)建刪除，該密碼等）

[root@room1pc01 ～]# yum install -y python-paramiko

#vim allhost.py

import getpass

import os

import paramiko

import sys

import threading

def remote_comm(host, passwd, comm, user="root"):

ssh = paramiko.SSHClient()

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

ssh.connect(host, username=user, password=passwd)

stdin, stdout, stderr = ssh.exec_command(comm)

out = stdout.read()

err = stderr.read()

if out:

print "[out]%s: %s" % (host, out),

if err:

print "[error]%s: %s" % (host, err),

ssh.close()

if __name__ == "__main__":

if len(sys.argv) != 3:

print "Usage: %s ipfile "command"" % sys.argv[0]

sys.exit(1)

if not os.path.isfile(sys.argv[1]):

print "No such file:", sys.argv[1]

sys.exit(2)

ipfile = sys.argv[1]

command = sys.argv[2]

pwd = getpass.getpass()

with open(ipfile) as fobj:

for line in fobj:

ip = line.strip()

t = threading.Thread(target=remote_comm, args=(ip, pwd, command))

t.start()

#vim ipaddr.txt

192.168.4.1

192.168.4.2

192.168.4.3

192.168.4.4

[root@room1pc01 桌面]# python remote_comm.py ipaddr.txt tedu.cn "useradd bob"

總結

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